Top plate for gas stoves



Aug. 17 l926.-

.- E. SCHREIBER TOP PLATE FOR GAS. STOVES Filed Sept. 2, 1924 lINVENTORI 5 m swam",

ORNEY.

Patented Aug. 17, 1926.

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EUGENE SCHREIBER, G13 PflRTLAND, OREGON, ASSIGNOR TO FERRIS STOVE-TOPGOM- PA'NY; OF PORTLAND, OREGON, A CORPORATION OF OREGON. 7

.TOP PLATE FOR GAS STOVES.

Application filed September This invention relates to improvements in dsubject the top-plate of the stove to severe internal stresses due tothe unequal heating of the top which frequently. results in thecracking. of the plate or its becoming warped. I

at is the object of my invention to provide a too-plate of simple andnovel construction provided with a pair of pot-holes and means toconfine the heat generated from a burner to the immediate portionsthereabout with communication between two adjoining pot-holes togetherwith means for the protection of the plate from the relatively extremelocalized expansion and contraction caused by the confinement of theheat to tae middle portions of the plate.

A further object of my invention resides inthe provision of a lid forthe pot-holes of my improved top-plate having a substantiallyplanelowerjsurfacc and an aperture to receive a lifting handle with novelmeans to admit of the entrance of said lifter at all times into saidaperture when the lid is rest ing upon a flat surface. 4 I I Otherobjects and advantages, and objects relating to various parts anddetails of con struction will be readilv apparent in the detaileddescription to rollow.

In the accompanying drawings I have plainly shown byway of example oneform in which my invention may be constructed, and herein- M Figure 1 isa view in longitudinal section of a topplate embodying my inventionshown mounted in operative position upon stove. I

Fig. 2 is a view in transverse cross-section of the same. v

Fig. 3 is an underside plan View of my improved top-plate. detached.

at is an the top frame of a gas-stove, and 2 the endbars thereof whichare usually integrally connected together at their ends in a singlecasting. Said bars are usually of angle configuration 'in cross'sectionand are formed along the inner marginal edge of theirhorizontal flanges3 with areentrant angular groove 1 in which a grating, not shown wasdesigned to be supported. 7

The top-plate of my invention comprises a bodyo ofrectanjgularconfiguration hav ing parallel plane upper and lower surfaces 6 andTQrespectively. A marginal dependbead 8 extends about said platedesigned to supp'ortjthe plate upon the upper surface 10 ofthe stove'bar's 1 groove 4;

At oneend 11 of the plate oppositely curved ribs '12 are symmetricallyforniedfon the undersideextending from'thebead 8 at the end of saidplate to the head at the side marginal edges, respectively. Saidribs arespaced apart at their outer endsto provide an intermediatehandle-portion 13 formed with a pluralityof slots 15 parallel with thetransverse axis of the. plate. Similar slots 16 are formed in the cornerportions 17 exteriorlyyot, said ribs '12. Said slots 16 serv'eto weakenthe plate at such corner portions so that the plate may be broken awavmore readily along the line of one of and 2 exteriorly of'the saidslots'selectivelyand along the outer margin of a rib 12 to moreperfectlyadapt it to iit the tops of stoves of different length should the needarise and accommodate a stove-pipe. In Fig. 3 I have shown the top infull lines broken away as described, and

in broken lines with the top-plate in itsoriginal condition. To fittheplate onto a stovetop having a stove-pipe one entire cornerportion 17may be broken away to fit the stove-pipe, or as much thereof asnecessary. In the event that the portions are removed from thetop-plate, as shown in Fig. 3, the

handle-portion '13 will extend beyond the stove-bar 2 and provide aconvenient means for lifting the plate.

Numerals 18 indicate clip attachments formed with a slotted hole 19through which they may be secured to the underside of the plate inadjusted. positions by means of bolts 20 projecting through the plate.An oflset end 521 extends downwardly at their outerendsandbears againstthe side bars 1 at each side to maintain the plate in rigid positionrelative to the stove. The bolts 20 located near the end of the plateare extend-ed through a ertures in the plate body 5 and the s' llarbolts at the other end'of the plate extend through any of the slots 16desired.

The plate body 5 is provided with a plane upper surface 6 and isformedwith a pair of pot-holes ,andQ t of the usual circularconfiguration arranged symmetrically in the major axis of the plate.Dependent flanges 25 are formed about the inner marginal edge of eachsaid pot-hole providing a ledge upon which lids 26 may be lodged withtheir upper surfaces flush with the upper surface 6 of the plate. Saidflanges 26 depressed below the plane of the lower surface 7 of the plateare connected by a pair of ribs 27 extending convergently from the hole23 toward the hole 24, that is to say, toward the end 11. Said ribs,cast integrally with the flanges 25 and the plate generally, aresubstantially tangent to the flanges about the hole 23 and are directedto intersect at a point within the end 11 of the plate so that aconsiderable contraction of the passage 28 is afforded therebetween inthe distance be tween the two pot-holes.

An eflectively continuous band 30, preferably of sheet metal, is securedto said plate by bolts 31 following the circular contours of saidpot-holes outwardly of their juncture with the ribs 27 and extending insimilar convergent directions upon the outside and in close engagementwith said ribs. Be:- ing upon the outside of said flanges 25 and saidribs 27 and in close contact at its upper edge with the under surface 7of the plate a reasonably gas-tight joint is provided thereat and thedepth of the band, approximately an inch in width, assures that butlittle heat is lost except by radiation.

The lids 26 are desirably formed with parallel plane surfaces on theiropposite sides- An aperture 32 is formed contiguous to the peripheraledge of each lid and adjacent thereto upon the under side andsymmetricallv in a radial line interiorlv thereof is formed or providedwith a lug 33 having a flat lower end upon which the lid will rest intilted condition when lying on a flat surface, such as the stove-topwhen removed from its pot-hole and whereby the end 34 of a stoveslifter35 may be easily entered into the aperture 32 which is thus elevatedabove the supporting surface.

It will be seen that the holes 23 and 24lare connected by a continuousband 30 which will tend to prevent the dissipation of the heat generatedfrom the burning of gas emitted from the burners, shown at 36 in Fig. 1.If but one burner is in operation a considerable portionof theheat--therefroin,. instead of flowing radially therefrom and under a potor lid resting thereabove to be wasted, will-flow from one pot-hole tothe other through the passage 28 and become effective to supply heat toa utensil held over the other hole. Similarly t-lieentire portion ofthetop plate including the lids 26 comprised within the portion thereof delimited by the band 30 will become heated sufl'iciently to cook foodfrom the heat supplied by one burner and with two burners still. greaterresults may be obtained with both burners turned comparatively low.

\Vith the heat being confined in the manner described within said band30 and with the relatively cooler portions of the plate outside of saidband a considerable dif fer'ence of temperature will result in avariation of expansion and contraction of the metal in the plate-top,and frequently causes the cracking and warping of the top adjacent saidhand. To guard against this elfect I have provided the ribs 27 toreinforce the plate upon the line of the greatest stress in moleculardisturbance and which does em ciently prevent such defects as thecracking and warping of the plate at such regions.

I wish it to be understood that myv invention is not limited to the useof all ofthe above described features and constructions, for some may beomitted and others may be varied or modified in various ways, as will bereadily apparaent to those skilled in the art. I

Having described my invention, what I. claim as us v, is:

1. A top-plate for stoves, comprising a plane horizontally extendingplate having a pair of potholes formed therein, marginal depressedflanges about said holes, a pair of ribs integrally formed on theunderside of said plate'and connecting saidflanges integrally at theiradjacent. sides, and a depending band connected on the underside of saidplate in close alignment with said ribs and said flanges exteriorly ofsaid ribs.

2. top-plate for stoves, comprising a plane horizontally extending platehaving a pair of pot-holes formed therein, marginal depressed flangesabout said holes, a pair of convergent ribs integrally formed on theunderside of said plate and connecting said flanges integrally at theiradjacent sides,and a depending ban'd connected on the underside of saidplate in close alignment with said ribs and saidflanges eXteriorlyofsaid ribs.

EUGENE SCHREIBER.

